A finger joint, also known as a comb joint, is a woodworking joint made by cutting a set of complementary, interlocking profiles in two pieces of wood, which are then glued. The cross-section of the joint resembles the interlocking of fingers between two hands, hence the name "finger joint". The sides of each profile increases the surface area for gluing, resulting in a strong bond, stronger than a butt joint but not very visually appealing. Finger joints are regularly confused with box joints, which are used for corners of boxes or box-like constructions.

Creation

Finger joints are generally created by using identical profiles for both pieces. They are made complementary by rotation or translation of the tool with respect to the workpiece. Typically a finger router bit is used, but spindle moulders can also be used. Manual cutting of finger joints is time-consuming and error prone hence rarely done except in craft pieces.

Applications

A tapered or scarfed finger joint is the most common joint used to form long pieces of lumber from solid boards; the result is finger-jointed lumber. The finger joint can also be valuable when creating

baseboard In architecture, a baseboard (also called skirting board, skirting, wainscoting, mopboard, trim, floor molding, or base molding) is usually wooden or vinyl board covering the lowest part of an interior wall. Its purpose is to cover the joint b ...

s, moulding or trim, and can be used in such things as floor boards, and

door A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in the wall is a ''doorway'' or ''portal''. A door's essential and primary purpose is to provide security b ...

construction.

References

https://www.nrcan.gc.ca/forests
{{Woodworking Joinery de:Holzverbindung#Zinkung_und_Gratung

Creation

Applications

See also

References